TCP SYN (p0f)

4:49+15:0:1460:65535,13:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-23 03:04 · last seen 2026-06-23 03:23 · JSON

Decomposed attributes

IP version4
Initial TTL49+15
Options length0
MSS1460
Window size65535
Window scale13
Options layoutmss,sok,ts,nop,ws
Quirksdf,id+
Payload class0

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d1312h2_a44d0ee8b3cc_e381dae6da6b10

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr21engb_dbadf4a3aba3_000000000000_0000000000005
ge20nn19enus_1ebb7bad6c7c_000000000000_0000000000002
ge20nr19enus_92a70b2e75e5_000000000000_0000000000002
ge20nn19enus_92a70b2e75e5_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;3:1;4:8388608;5:65536|8323073|0|m,s,a,p10

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.365
Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.03
Mozilla/5.0 (X11; Linux x86_64; rv:151.0) Gecko/20100101 Firefox/151.02

Country

fingerprintco-occurrences
AU · Australia10

Network (ASN)

fingerprintco-occurrences
AS13335 · Cloudflare, Inc.10